How am I supposed to move on?

How am I supposed to move on from this? Married for 12 years, 6 years of betrayal evidence (with possibly more), with multiple DDays. I’m tired of giving them chance after chance, and I want to move on. But, I don’t think I’ll ever be able to trust anyone ever again. It makes me question all of my sanity, every decision I’ve made, and every relationship, past and current. I look at people a different way now, now that I know that the person I once thought the world of was able to destroy me in such a profound way. How do I heal from this?